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Finding the Fourth Proportional to 11,652,012.70, 17,478,019.05 and 7,410,982.30

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Solution

The fourth proportional to 11,652,012.70, 17,478,019.05 and 7,410,982.30 is: 11,116,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,652,012.70 : 17,478,019.05 = 7,410,982.30 : x
  2. Step 2: Convert to fraction form
    11,652,012.70/17,478,019.05 = 7,410,982.30/x
  3. Step 3: Cross multiply
    11,652,012.70x = 17,478,019.05 × 7,410,982.30
  4. Step 4: Simplify right side
    11,652,012.70x = 129,529,289,818,612.81
  5. Step 5: Solve for x
    x = 129,529,289,818,612.81/11,652,012.70
  6. Step 6: Final answer
    x = 11,116,473.45

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.